Diary of Isabella Twysden: Introduction. 03 Aug 1563. Sir Roger's [her future mother-in-law] mother liked to be attended by a young lady in waiting, and Isabella Saunder was performing this function in 1633, possibly because her father had ruined himself over the New River, Isabella inherited the heraldic achievements of the Saunder family, as her only brother died unmarried, but was heir to nothing else.

Diary of Isabella Twysden: Introduction. The Diary Of Isabella, Wife Of Sir Roger Twysden, Baronet, Of Royden Hall, East Peckham, 1645-1651.

03 Aug 1563. By The Rev. F. W. Bennitt, M.A.

Source.

Diary of Isabella Twysden: Introduction. This Diary of Lady Twysden's is in the British Museum, Additional Manuscripts numbered 34169; it was sold at Sotheby's to the Museum in 1892.

Isabella was the third and youngest daughter of Sir Nicholas Saunder of Nonsuch, near Swell in Surrey. Born in 1605, she married in 1635 and died in 1657. Sir Roger was thirty-seven at the time of his marriage.